Machine



(Model) 2 SheetsSheet 1.

t). J. HOLDEN & L; GRISWOLD.

SEWING MACHINE.

Patented Feb. 13,1883.

N. PETERS. Finale-Lithographer, Wanhinlon. u. c

(Model-J ZSheets-Sheet 2. 0. J. HOLDEN & L. GRISWOLD.

SEWING MACHINE.

Patented Feb. 13, 1883;

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UNITED STATES.

; PATENT 'FFICE.

OREL J. HOLDEN, OF TARRYTOWN, AND LEV eEIswoLn, OF NEW YORK, N. Y., ASSIGNOBS, BY MEsNE ASSIGNMENTS, TO THE NEW WORLD sEw1Ne MACHINE COMPANY, OF NEW roan, Y.

SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 272,050, dated February 13, 1883, Application filed October 10,1882. (Model-l To all whom it may concern:

Tarrytown, State of New York, and LEV GRIS- WOLD, of the city of New York,'county and feeding. Fig. 3 is a view looking-down from ments.

State of New York, are the joint inventors of an Improvem entin a Sewing-Machine, of which the following is a specification, reference being had to the drawings accompanying the same.

Our invention consists in an improved feed device for sewing-machines, whereby any requisite number of stitches to the inch may be made by the operation or manipulation of a single crank, as hereinafter described.

In the drawings, Figure 1 is a side view of a sewing-machine containing our improve- Fig. 2 is an end view, showing the various devices for operating and regulating the the top onto the same. Fig. 4 is a front sectional view of the feed and the mechanism operating the same, and a cross-section on line a: a, Fig. 3. Fig. 5 is a side view of the same, showing the driving-shaft, rotary hook, and side view of the serrated feed-surface, and is a section of Fig. 2 on line y y.

As set forth in Fig. 1, we show our improved tension device for which we filed our application for Letters Patent on the 28th day ofSeptember, 1882, Serial N 0. 72,920, and we do not need to go into a detailed description here of the same, reference being made to said application for a full descriptionthereof. We will only describe the same as may be necessary in order. to show its connection with our feeding device.

A is theframe-head ofasewing-machine having the driving-wheel B and connecting-rod C, whereby motion is communicated to the rocking arm D, and the needle-bar E is worked up and down, in which bar is the needle F.

a is the spool-holder usually found on sewing-machines.

G is the shaft, on one end of which is the whee1.B,which shaft passes through theframe and the sleeve b, and on its other end has devices attached, hereinafter described.

H is a shaft,whichhas on its end toward the driving-wheel the wheel h, which has the handle-arm e out of its center, and on one side of and to this wheel, by screw '6, is fastened the rod or arm I. This bar or arm I is moved i ,5 up bypushing the handle 0 up, and thus turn- Be it known that we, OREL J. HOLDE ofing the Wheel h partially around, and is lowered when the handle 0 is pulled down, thus raising and lowering the tension rod K by means of arm kand nutorarm l, (dotted lines,) and thus inereasin g the tension of the disks Z and l the arm is and nut l and tension-rod K .in the application above referred to, and it is not considered necessary to describe the same minutely here.

At the end of the driving-shaftafteritleaves the casting A the diameter is much reduced for the purpose of making an eccentric thereon, on which is fixed the link composed of the lower arm, 0, which is connected to the barLby the pin 0, for the purpose of vibrating the arm L. The upper arm of the link 0 holds the rod 1) fastened therein by the pivot 19.

On the end of rod 1) is the head 0, which Works in the socket m. ,This socket on is permanently fixed to the side of the feed-bar M, and drives the feed-bar forward when feeding.

In the socket m at the head 0 is placed the spiral spring h which serves as a cushion to the pressure of the rod 1), and also serves to keep the feed-bar at h against the casting A, for the spiral spring h is nearer the face of the casting A than the spring a is, and thus has a tendency to overcome the attempt of spring 12. to throw it of the feed-bar away from the casting A; also, it has a tendency to keep the feed-bar pressed down as it rides on the link 0, the socket on being placed at such an angle to the feed-bar M, whereby it receives pushed forward by the arm pand head 0. The opposite end of feed-bar M has an arm, 72/, projecting downward. -In the lower end is the hole 1', in which one end of the pin t passes. The other end of said pin tis placed in socket t, resting in the arm T on a rim, to, made for that purpose, so as to hold it up, and as it is a bolt-socket every motion is allowed to said pint to adjust the pin t to the feed-bar.

n the pin t, between the arm h. and the socket t, is a spiral spring, 22, so placed that it has a constant pressure against the arm h,

' pressing it from the arm T, and serving also as a cushion to the feed-bar. A small rubber or leather washer is placed between the said spiral o and socket if, so that abrasion is avoided. This arm T is placed on and worked by the shaft H when the handle 0 is turned.

f is a pin, which serves as astop to the arm T, and prevents its turning too far back from the arm h, and f is a like pin, stopping the arm T from proceeding too far in an opposite way. This arm is riveted fast onto the end of shalt H, so that it partakes of every motion of' said shaft.

N is the serrated feed-surface usually found in sewing-machines, and is fastened onto the feed-bar M by screw g.

P is thetake-up,fastened at one end,at B, to

the casting-piece S, andis free at its other end. Itis of a peculiar construction, and is minutely described in the application now on file and above referred to. It holds the thread on its passage to the needle, and is moved back out of line by means of the pin a, on which revolves a loose wheel or sleeve, a coming into contact with the projection on its surface, (1. It works behind the guard b which is fixed to the bar or plate S by being set tight and held against the casting on piece S by screw 3 The space left between said piece S and guard b at 6 is for the thread to pass through, so as to come between S and b as it is put into the guardot' the take-up b and lies against the washer on said screwy, which is placed between the guard b and the casting S When the take-up is pressed back farthest from the needle the thread is pressed against the screw b and b are other thread-guides, through which the thread is passed on its way to the needle. The thread-guide I), being on the needle-bar E, works up and down with the said needle-bar.

At the end of the shaft G there is a hole, 9, bored in the center of said shaft, in which is placed the arm of the hook H This hook in its construction and operation is the same as that usually found in good sewing-machines.

The operation of the machine is as follows: The thread and needle being in place, the tension device is adjusted for the desired stitch by lowering or raising the handle 0, thus moving the bar I, fixed on the wheel h, thereby raising or lowering the tension-rod K and tightening the grasp of the disks Z and l on the thread, the rocking arm D giving an up-anddown motion to the tension-rod,'thus tightening or loosening the tension. By the turning of the wheel h the shaft H has been turned so as to throw the arm T in toward the feed-bar at h, thus pressing the pin it farther into the hole 1", thereby compressing the spiral o between the shoulder of the pin t and against the feed-bar at h. The object of the hole 1" is to hold the pin it, on which is placed the spiral c, and holds the spiral spring between the arm h and arm T. The spiral spring 1;, when pressed sufficiently to be exhausted between the armh and the shoulder of the pin t, stops the movement of the feed backward, thus shortening the stitch to the greatest degree possible. When the spiral spring 2; is allowed its greatest expansion it relieves the pressure against the arm h and allows the longest stitch possible. All this and the intermediate lengths of stitch may be obtained at the option of the operator. 0n the end of the shaft G, outside of the frame, the link 0 c is fitted onto the eccentric formed on the end of shaft G. The upper part of this link 0 is jointed to the rod 10, having the head 0, which works in the socket m. The socket, being permanently fastened to the feed-bar M on the side next to the frame, causes, in its motion, on the eccentric on the end of G, the feed-bar M to move forward against the pressure of the spiral spring it till the force of the armp, being in limit, thus compressing the spring a in its recess against the screw a. 1n the socket 712, pressing against the head 0, is the spiral spring k which serves a double purpose, as above set forth. As soon as the pressure of the rod is exhausted and is drawn back by the eccentric on shaft G the spiral spring n presses the feed-bar M backward to its original or first position against the spring 22. This feed-bar Mat one end restson the screw it and at the other rests on the link 0, which link 0, in its motion on the eccentric of shaft G, gives the feed-bar at that end its upward and downward motion. The other end of the link 0 is jointed on the bar L, and in its motion works said bar L, which bar L gives the feed-bar M, at its other end, a like downward and upward movement, the screw it, which holds that end of the feed-bar M, being permanent or fixed into the bar L. The tension being adjusted and the thread passed through the guides and take-up to the needle, the wheel B is revolved, thus turning the shaft G, and on it the eccentric holding the said link 0 0, rod, and head, thus throwing the feed-bar M forward, and when exhausted the bar L, thrown down by the link 0, carries with it the screw it and that end of the feedbar M. The rod and head pressure being removed, the spring 42 presses the feed-bar M backward till the arm hexhausts the spring n. Then thelink craises the feed-bar armh up, while the arm L raises the other end of the feed-bar up, both together. Now the feed-bar and its connected devices are ready for another stitch. The link a 0 being jointed on the thrown forward by the eccentric, is exhausted bar L at one end, 0, the rod 1) being attached to the upper end, 0, the eccentric or driving device in the center of the link gives more motion to the rod 19 than it would it the bar 1) were attached to the center or directly opposite the eccentric, thus giving a long feed with a short throw of eccentric, and does not necessitate the use of an eccentric with a greater throw for the purpose of getting a long stitch, thus causing the feed to raise and lower to a greater extent than required. By our adj ustment we avoid this. The pins j and f limit the lateral movement of the arm T for longest and shortest stitches. The take-up is thorougly described in combination with an automatic device, as above stated.

It is unnecessary to describe the action of the hook herein its operation with the thread, as it is the same usually found in all good single-thread sewing-machines.

We do not intend to claim singly the jointed feed composed of the arms Land M, as the same is not new.

What we claim, and desire to secure by Letters Patent, is

1. In a sewing-machine, the feed-bar M, with its screw and spring-bar L, attached to and operated by and in combination with link 0 .c,

with rod, head, and socket, and spring 71?, substantially as described, and for the purpose specified.

2. In a sewing-machine, the feed-bar M, with its screw and spring-bar L, connected with and worked by and in combination with the link 0 0, rod, head, and socket, shaft H, arm T, pin t, and spiral spring a, substantially as described, and for the purpose specified.

3. The combination of the feed-bar M, with its spring and screw, by which it is fastened to the bar L, link 0 0, rod, head, and socket,

spring h in said socket, in combination with the shaft H, arm '1, with its rim, stops f and f, spiral spring a, and pin it, substantially as described, and for the purpose specified.

4. In a sewing-machine, the eccentric on end of shaft G, in combination with link 0 0, rod 19, head 0, socket m, and feed-bar M, substantially as described, and for the purpose specified.

Witness our hands this 2d day of. October,

OREL J. HOLDEN. LEV GRISWOLD. Witnesses:

W. H. HICKS, A. H. J OGELYN. 

